Apparently, Mexico Revenue's prior to the revolution are not extensively cataloged, especially the overprints. Neither Forbin or Roberts really documents the overprints and I'm running out of ideas for research. MEPSI doesn't really deal in revenues, but there is a new catalog on the way.
Anyway, check out the picture and see if you can figure out what the overprint says. I can see DOA__PEG, but it doesn't correspond to anything in my searches.
Thanks ya'll.
